{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn07691_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Glenside, Pennsylvania | 1920 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"16"},{"label":"placed","value":"12"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 7, georef-snap 4, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p1 (tier 3, 40.10240,-75.15614 +/-702m); p10__2 (tier 2, 40.11072,-75.14908 +/-332m); p2__2 (tier 1, 40.10351,-75.16394 +/-118m); p4__2 (tier 1, 40.10327,-75.15753 +/-180m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1920 | sanborn07691_002 p10 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"16"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T21:34:15Z","modified":"2026-09-23T21:34:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1251.9,1736.8 1301.3,1748.6 1312.9,1575.7 1613.0,1629.1 1613.0,0.0 239.4,0.0 217.2,346.0 85.0,430.4 38.5,593.4 91.6,1561.6 257.8,1522.7 369.2,1547.4 404.3,1619.0 496.1,1708.6 1198.3,1913.0 1251.9,1736.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[584.0,1096.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1489135,40.1102294]}},{"type":"Feature","properties":{"resourceCoords":[846.0,438.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1464545,40.1120358]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1920 | sanborn07691_002 p11","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"18"}],"created":"2026-09-23T21:34:15Z","modified":"2026-09-23T21:34:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1489.3,1678.3 1613.0,1714.4 1613.0,1913.0 -0.0,1913.0 -0.0,0.0 1613.0,-0.0 1613.0,29.5 1483.3,19.7 1484.0,1009.2 1395.3,1111.3 1588.1,1288.8 1484.0,1401.1 1489.3,1678.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1485.0,743.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1641833,40.11397]}},{"type":"Feature","properties":{"resourceCoords":[1226.0,743.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1651699,40.1145539]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1920 | sanborn07691_002 p12","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"20"}],"created":"2026-09-23T21:34:15Z","modified":"2026-09-23T21:34:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1794.0 1160.8,1913.0 -0.0,1913.0 -0.0,1880.0 270.4,1859.5 255.6,1663.5 130.7,1637.1 104.7,1363.8 199.1,1245.2 -0.0,1087.8 75.5,976.9 0.8,-0.0 1613.0,-0.0 1613.0,1794.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[680.0,885.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1624908,40.1119447]}},{"type":"Feature","properties":{"resourceCoords":[56.0,714.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1641833,40.11397]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1920 | sanborn07691_002 p2 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T21:34:15Z","modified":"2026-09-23T21:34:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,950.0 1553.0,973.4 1570.9,683.6 859.1,674.1 683.0,0.0 -0.0,0.0 -0.0,1913.0 1613.0,1913.0 1613.0,950.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.1648430978804,40.108195207811185]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16139837911557,40.10684702834576]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16347421071603,40.10370021803039]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16691892948086,40.105048397495814]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1920 | sanborn07691_002 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T21:34:15Z","modified":"2026-09-23T21:34:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 103.5,1913.0 57.4,1167.3 -0.0,1193.9 -0.0,-0.0 851.5,0.0 802.2,419.8 1613.0,503.1 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16110527553698,40.10723021172088]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15771273631789,40.10569264157326]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16008015641943,40.10259346950067]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.16347269563852,40.10413103964829]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1920 | sanborn07691_002 p4 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4208.8"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3443.2"}],"created":"2026-09-23T21:34:15Z","modified":"2026-09-23T21:34:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1850.8 1527.3,1865.2 1570.8,1172.4 397.1,1054.2 0.0,1052.2 -0.0,1850.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[54.0,1397.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1559804,40.1026477]}},{"type":"Feature","properties":{"resourceCoords":[615.0,1470.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1549121,40.1020183]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1920 | sanborn07691_002 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T21:34:15Z","modified":"2026-09-23T21:34:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1155.3 1613.0,1913.0 1154.3,1913.0 1195.0,1804.6 139.8,1878.9 1.1,539.8 1359.3,-0.0 1470.8,-0.0 1613.0,366.1 1613.0,670.8 1455.5,1106.5 1613.0,1155.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15171819128494,40.10237357539184]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.14877293252293,40.100372973822054]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15185307523406,40.09768221713525]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15479833399607,40.099682818705034]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1920 | sanborn07691_002 p6","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"19"}],"created":"2026-09-23T21:34:15Z","modified":"2026-09-23T21:34:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 -0.0,1913.0 -0.0,-0.0 353.2,0.0 352.7,20.1 1089.2,45.1 1042.2,373.6 1558.7,453.9 1527.5,501.8 1613.0,521.3 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[474.0,799.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1579595,40.0991814]}},{"type":"Feature","properties":{"resourceCoords":[1446.0,745.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.153621,40.0975931]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1920 | sanborn07691_002 p7 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"22"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3483.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T21:34:15Z","modified":"2026-09-23T21:34:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"510.4,1759.7 823.9,1694.6 709.6,739.5 745.4,575.1 870.7,483.2 870.7,125.8 842.5,103.7 870.7,75.2 870.7,0.0 0.0,0.0 -0.0,1913.0 63.2,1913.0 124.9,1516.8 268.1,1539.2 254.6,1731.0 510.4,1759.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[250.9,1322.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1535977,40.1116393]}},{"type":"Feature","properties":{"resourceCoords":[458.9,879.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1516959,40.1127273]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1920 | sanborn07691_002 p7 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"split_canvas_x","value":"3482.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2969.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T21:34:15Z","modified":"2026-09-23T21:34:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1543.5,303.9 1581.8,67.4 1285.0,179.1 1030.3,189.9 1017.0,-0.0 870.7,0.0 870.8,1817.9 1277.6,1814.8 1289.0,1913.0 1613.0,1913.0 1613.0,1812.7 1553.2,1801.2 1543.5,303.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1037.5,1168.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1573705,40.1073535]}},{"type":"Feature","properties":{"resourceCoords":[1549.0,1168.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1553679,40.1062004]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1920 | sanborn07691_002 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T21:34:15Z","modified":"2026-09-23T21:34:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1266.6,1819.0 679.0,1829.4 495.2,1851.2 502.1,1913.0 131.8,1913.0 132.6,1825.6 72.1,1824.4 74.4,310.4 114.7,72.9 267.3,-0.0 380.4,-0.0 429.1,61.6 536.5,128.4 1270.7,176.3 1273.8,-0.0 1613.0,-0.0 1613.0,143.4 1586.5,203.9 1613.0,206.6 1613.0,490.9 1471.9,483.7 1464.5,627.6 1566.4,722.0 1512.2,845.6 1485.0,981.8 1493.8,1130.2 1613.0,1536.4 1613.0,1713.9 1266.6,1819.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15223350689327,40.10989391406606]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.14595926042398,40.106288427812416]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15151072385858,40.100556784700004]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15778497032787,40.10416227095365]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glenside, Pennsylvania | 1920 | sanborn07691_002 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T21:34:15Z","modified":"2026-09-23T21:34:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"657.2,1913.0 664.3,1683.7 585.8,1656.7 687.1,1392.6 694.2,1343.7 663.1,1243.4 603.4,1080.4 204.4,1225.1 195.3,1048.0 55.0,647.0 44.5,433.4 107.0,234.0 -0.0,144.7 -0.0,0.0 1613.0,-0.0 1613.0,1913.0 657.2,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824gm:g3824gm_g076911920:07691_1920-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.14791191659008,40.10515458415063]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.14190726126145,40.10132137363022]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.14780894564471,40.095835624028695]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.15381360097334,40.09966883454911]}}]}}]}